11/10/20

What is the image of the point ( 4 , 5 ) after a rotation of 9 0 ∘ counterclockwise about the origin?

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11/10/20

What is the image of the point (−1,−4) after a rotation of 9 0 ∘ counterclockwise about the origin?
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11/10/20

AP STAT QUESTION DUE TODAY PLS HELPPPPP!!!!!
A researcher is interested in determining the effectiveness of a new medication that may reduce blood pressure for individuals who have higher than average blood pressure. To determine the... more
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11/10/20

hypotheses stat
Suppose are running a study/poll about the proportion of voters who prefer Candidate A. You randomly sample 42 people and find that 34 of them match the condition you are testing.Suppose you are... more
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11/10/20

Test statistic statistics

You are testing the claim that the mean GPA of night students is different than the mean GPA of day students.You sample 45 night students, and the sample mean GPA is 2.03 with a standard deviation... more
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11/10/20

Graph the line with the slope 3and y-Intercept -5
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11/10/20

Statistics hypothesis testing

Test the claim that the proportion of men who own cats is significantly different than 70% at the 0.1 significance level.The null and alternative hypothesis would... more
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11/10/20

A sector of a circle has a central angle of 30 ∘ . Find the area of the sector if the radius of the circle is 6 cm.
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11/09/20

The coordinates of the endpoints of PQ are P(−2, 4) and Q(4, 1). On the same set of axes, label and state the coordinates of P"Q", the image of PQ under a T 4, 0 reflect y = −1.
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11/09/20

Statistics Questions
You measure 23 watermelons' weights, and find they have a mean weight of 64 ounces. Assume the population standard deviation is 13.2 ounces. Based on this, construct a 90% confidence interval for... more
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11/08/20

i need answers to this. Help is needed.
Is (-3, 5)a solution to the system of equations?x-3y= -18-2x+y= -1
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11/08/20

Rules of Probability
Let E, F and G be three events in S with P(E) = 0.61, P(F) = 0.47, P(G) = 0.39, P(E ∩ F) = 0.3, P(E ∩ G) = 0.2, P(F ∩ G) = 0.18, and P(E ∩ F ∩ G) = 0.08. Find P(EC ∪ FC ∪ GC).P(EC ∪ FC ∪ GC) Can't... more
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11/08/20

Rules of Probability
Let S = {a, b, c, d, e, f} with P(b) = 0.11, P(c) = 0.18, P(d) = 0.23, P(e) = 0.19, and P(f) = 0.16. Let E = {c, d, e} and F = {a, b, d, e}. Find P(a), P(E), and P(F).P(a)P(E)P(F)I found P(E).... more
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11/08/20

geometry question
Canyon A symmetrical canyon is 4850 feet deep. A river runs through the canyon at its deepest point. The angle of depression from each side of the canyon to the river is 60 ̊. Round to the nearest... more
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11/08/20

Basics of Probability
A fair 4-sided die is tossed. What is the probability that the numbers 4 or 3 are tossed?Can't seem to figure it out. Any help is appreciated thanks.
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11/08/20

Probability Query
A box contains 3 red chips and 7 white chips. A chip is selected at random, its color noted and is set aside. Then a second chip is selected and its color noted. Let W be the number of white chips... more
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11/07/20

probability Law and Order
The television show Law & Disorder has been successful for many years. That show recently had a share of 17, meaning that among the TV sets in use, 17% were tuned to Law & Disorder. Assume... more
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11/07/20

Test scores on a lab test are normally distributed with mean of 200. If standard deviation is 20, what % fall between 180 & 240
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11/07/20

A population has mean 128 and standard deviation 22.
A population has mean 128 and standard deviation 22.(a) Find the mean and standard deviation of the sample mean of randomly chosensamples of size n = 36.(b) Find the probability that the mean of a... more
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11/06/20

This is my third try and I still do not understand; some answers/ assistance would be greatly appreciated! :)

You are conducting a Goodness of Fit hypothesis test for the claim that all 5 categories are equally likely to be selected. Complete the table. Report all answers correct to three decimal... more
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11/06/20

Test for Independence question
You intend to conduct a test of independence for a contingency table with 7 categories in the column variable and 6 categories in the row variable. You collect data from 251 subjects.What are the... more
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11/06/20

Write an equation in slope-intercept form of the line with a slope of −3 4 and y-intercept of –5.
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11/06/20

Find four consecutive integers such the twice the sum of the first and third is 26 less than 5 times the fourth
I have another- sorry. Find three consecutive even integers such that 11 more than twice the largest is 9 more than the smallest
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11/06/20

The length of a rectangle is 6 more than half its width. The perimeter is 36 inches. Find the dimensions of the rectangles.
This is 7th and 8th grade geometry. Please help. I am stuck
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11/06/20

Write the point-slope form of the line that has a slope of 3 and passes through the point (1,4).
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